Programmable control digital exchanging board for instructive experiment

The utility model relates to a programmed control digital exchanger applied to a teaching experiment. The utility model belongs to the technical field of a teaching experiment instrument. The utility model realizes direct modification to the program in a microcontroller. The utility model is charact...

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Bibliographic Details
Main Authors CHUNWU YANG, TAO WAN, YIBING FENG
Format Patent
LanguageEnglish
Published 08.10.2003
Edition7
Subjects
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:The utility model relates to a programmed control digital exchanger applied to a teaching experiment. The utility model belongs to the technical field of a teaching experiment instrument. The utility model realizes direct modification to the program in a microcontroller. The utility model is characterized in that logic decoding circuits in a central control part and an exchange part are CPLD logic decoding circuits which have the function of online programmability, and the logic decoding circuits can exchange logic decoding information; a programming selection switch controls the microcontroller to receive the processing program transferred by an online programmable interface voltage conversion circuit and an online programmable downloading cable.
Bibliography:Application Number: CN2002256686U